If you get a 10% raise, and inflation is 6%, did you actually get a raise?
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Thursday, October 14, 2021
Saturday, October 2, 2021
Say you run 20 tests before and after a code change meant to speed up the code, but there's a lot of noise in your benchmarks. Some simple statistical tests can help you determine if you actually have an improvement in that noise.
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Monday, September 13, 2021
We could just repeatedly add the numbers but we don't. Is the algorithm we use actually faster?
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Tuesday, August 31, 2021
levels.fyi is a great resource for software salary info and it's easily mineable. I was curious how salaries in what are sometimes considered medium cost-of-living cities compare.
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Sunday, August 1, 2021
Plotly doesn't have the built-in ability to scroll vertically with a fixed x axis unfortunately, but you can mimic that fairly easily...
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Wednesday, June 30, 2021
You will almost certainly be seeing headlines about vaccinated people dying and might even see that more vaccinated than unvaccinated die. Here's one from the week that I wrote this post. Why do we still say vaccines work if this is happening?
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Sunday, June 13, 2021
The 'Wheel' is an options strategy that combines cash-secured puts with covered calls. I sometimes have trouble really grasping options strategies in my head, so simulating some scenarios gives me a better feel.
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Friday, May 21, 2021
Although log10(<any number less than or equal to 0>) is not defined, there are situations where you want to visualize data as if it were. How can you get plotly to do that? Another way of asking is 'how can you mimic symlog functionality in plotly?'
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Sunday, May 2, 2021
Sometimes you want to quickly see unit test coverage of your code. Coverage.py makes that really simple.
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Tuesday, April 6, 2021
We suck at probability. A common trap we fall into is failing to realize this and thinking in terms of absolutes.
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Sunday, February 7, 2021
You probably learned at some point that the square root of -1 is i. What about the cubed root of it? There's the obvious answer of (-1)^3 = -1, but the answer isn't actually that simple.
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Sunday, January 24, 2021
I wanted to run some quick tests to see if regression toward the mean shows up clearly in NFL data.
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Friday, January 15, 2021
It always seemed magical to me that you can get a square wave from adding together sine waves, so I threw together some animations of Fourier series.
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